... the nonlinear load vs displacement behavior observed experimentally. The fracture of sea ice is characterized by the fracture resistance curve K R . ice sea ice nonlinear fracture mechanics fracture process zone R -curve cohesive crack model Samuel J. DeFranco1 and John P. Dempsey2 THE FRACTURE...

... and experiments under highly transient conditions are recommended for completing the understanding of the creep crack growth behavior in this regime. creep crack transient regime C t parameter Cr-Mo-V steel fracture mechanics nonlinear fracture mechanics John L. Bassani,1 Donald E. Hawk, 2...

.... Creep cracking creep crack initiation creep crack growth fracture mechanics viscoplasticity viscoplastic fracture mechanics finite-element analysis creep damage 316L stainless steel nonlinear fracture mechanics Philippe Bensussan, 1Roland Piques, 2 and Andre Pineau 2 A Critical Assessment...

.... The experimental results, which show higher displacement rates than predicted, cannot be explained by inclusion of time- and rate-independent plasticity but may possibly be due to primary creep. creep creep crack growth C t parameter C * parameter fracture mechanics nonlinear fracture mechanics...

...-dimensional damage model coupled with this matching are summarized. creep crack growth elevated temperature fracture small-scale yielding power-law creep Mode I fracture stress analysis elastic-plastic fracture nonlinear fracture mechanics fracture mechanics John L. Bassani, ~Donald E. Hawk...

... versus C * curves can be explained by examining the entire crack growth history predicted by the models. power-law creep C * parameter transient crack growth void nucleation void growth mechanisms crack growth criterion nonlinear fracture mechanics fracture mechanics Chung-Yuen Hu...

... fracture mechanics high-temperature fracture Incoloy 800 Incoloy 800H recrystallization nonlinear fracture mechanics Jude R. Foulds I Creep Crack Growth of Alloy 800H in Controlled-Impurity Helium REFERENCE: Foulds, J. R., "Creep Crack Growth of Alloy 800H in Controlled-lmpurity Helium," Nonlinear...

... simulation of an actual reactor. creep embrittlement impurity elements low-alloy steel creep ductility cavity fracture mechanics creep crack propagation computer simulation heat-affected zone postweld heat treatment nonlinear fracture mechanics Shinji Konosu 1 and Keikichi Maeda 1 Creep...

... can be estimated approximately from uniaxial creep rupture data. creep rupture creep crack growth plastic fracture mechanics Type 304 stainless steel nonlinear fracture mechanics fracture mechanics aging G. M. Buchheim, ~ C. Becht, 2 K. M. Nikbin, 3 V. Dimopolos, 3 G. A. Webster, 3...

... of the damage distribution. A general higher order symmetric damage growth law is also introduced. multiaxial testing creep cyclic plasticity nonproportional creep damage mechanics fracture mechanics nonlinear fracture mechanics David L. McDowell, 1 Kwang-Il Ho, 1 and James Stalley I...

... for steady-state creep conditions is consistent with results of long-time creep tests at 800C. ductile crack propagation creep crack growth fracture tests fracture mechanics elastic-plastic fracture J -integral C * -integral nonlinear fracture mechanics Thomas Hollstein 1 and Bert Voss 1...

...-crack formula for J . Implications for fracture testing of tough materials at relatively high-loading rates are discussed. elastic-plastic fracture nonlinear fracture mechanics dynamic fracture J -integral finite-element method three-dimensional crack analysis fracture mechanics T...

... exhibit less constraint than bend specimens, are more likely to creep under uncontained yielding conditions than to exhibit continuing ductile crack growth. fracture mechanics strain rate resistance curves crack-tip opening displacement elastic-plastic fracture nonlinear fracture mechanics...

... displacement (COD) gage used in the experiments provides an accurate estimate of the crack initiation point. dynamic loading J -integral transition time three-point bend SE(B) specimen high-strength steel finite-element analysis crack initiation nonlinear fracture mechanics fracture mechanics...

... structural steel and compared with static results and results obtained by earlier test methods. J-R curves dynamic fracture ductile fracture elastic-plastic fracture crack propagation J -integral fracture mechanics drop-tower testing fracture mechanics nonlinear fracture mechanics James...

... fracture Hutchinson-Rice-Rosengren (HRR) field caustics finite elements fracture mechanics nonlinear fracture mechanics Alan T. Zehnder, 1 Ares J. Rosakis, 2 and Ramaratnam Narasimhan ~ Measurement of the J-Integral with Caustics: An Experimental and Numerical Investigation REFERENCE: Zehnder, A. T...

... flow behavior and slip systems. As a result, the near-field behavior is strongly influenced by factors that have little or no effect on the far-field behavior. caustics high-strength steels J -integral HSLA steel fracture mechanics nonlinear fracture mechanics Ralph W. Judy, Jr., 1...

... increased or decreased with crack length, depending upon the test type. nonlinear fracture mechanics J -integral delta J effective stress-intensity factor crack closure automated testing computer control 304 stainless steel HY100 alloy fracture mechanics David A. Jablonski I...

... to that for pure Mode I fatigue crack growth. Mixed-mode fatigue torsion tension plus torsion nonlinear fracture mechanics J -integral stress-intensity factor deformation plasticity finite-element analysis potential drop fatigue crack growth rate cyclic loading fracture mechanics Roy...

... interferometry nonlinear fracture mechanics Gianni Nicoletto I Fatigue Crack-Tip Mechanics in 7075-T6 Aluminum Alloy from High-Sensitivity Displacement Field Measurements REFERENCE: Nicoletto, G., "Fatigue Crack-Tip Mechanics in 7075-T6 Aluminum Alloy from High-Sensitivity Displacement Field Measurements...